Generator for hydrocarbon-burners



J. 0. KING.

GENERATOR FOR HYDROCARBON BURNERS.

APPLICATION FILED SEPT- 8, I919.

Patented July 26, 1921.

BY TORNEY JOHN 0. KING, OF LOS ANGELES, CALTFORNIA.

GENERATOR FOR I-IYDROCARBON-BURNEBS.

Specification of Letters Patent.

Patented July 26, 1921.

Application filed September 3, 1919. Serial No. 322,404.

To all whom it may concern Be it known that 1, JOHN O. Kine, a citizen of the United States, residing at Los Angeles, in the county oi Los Angeles and State oi California, have invented new and useful Improvements in Generators for Hydrocarbon-Burners, of which the following is a specification.

This invention relates to improvements in hydrocarbon fuel burners and more particularly to such burners adapted to gencrate gas from hydrocarbon fuel preferably kerosene, the generator being an integral part of the burner and utilizing heat therefrom to generate the gas.

in the usual type of burner it has been found that carbon is precipitated from the kerosene or fuel oil in the generating chamber particles of which lodge in and clog the gas nozzle orifice which isnecessarily very small. It has also been round that improper air circulation caused by improperly locating the air inlets into the mixing chamber, in which the gas is mixed with the air to form a combustible fuel, causes explosions in said mixing chamber and also continuous burning of the gas in the chamber before entcring the burner.

The objects of this invention are to overcome both of these objections first by providing means whereby any particles of carbon or other sediment deposited within the generating tube or chamber will be minutely broken up before entering the gas nozzle orifice and will easily pass therethrough, and second by so locating the air inlet openings in the mixing chamber that proper mixture oi air and gas will take place and that gas will not accumulate therein.

With these and other objects in view as hereinafter more fully described and particularly pointed out in the claims, this invention is embodied in a kerosene burner substantially as shown in the accompanying drawings in which:

Figure 1 is a longitudinal sectional elevation of the generator and mixing chamber applied to a suitable burner which is shown in dotted lines.

Fig. 2 is a transverse sectional elevation through the mixing chamber on the line 22 of Fig. 1.

Fig. 3 is an enlarged perspective view of one of the granules which make up the filling substance in the generating tube. Like numbers refer to like parts in all of the figures.

1 represents a suitable burner having oriiices 2 in its upper side through which the gas escapes to be burned. 3 is a generating chamber, tubular in form, located over the burner and adapted to be heated thereby, being closed at one end by a cap a supported by a bracket 5 adaoted to receive a coupling for a kerosene pipe (not shown) and both bracket and cap are provided with channels through which kerosene may pass under pressure to the interior of the generating tube. The opposite end of the generator tube is provided with a nozzle 6 having a small orifice 7 through which the gas escapes into the mixing chamber 11.

The generator tube is filled with a heat conducting substance composed of granules S of fine particles of steel wire. The granules are formed in irregular shapes having many sharp points and edges for a purpose hereafter described. The filling substance is retained within the tube and spaced away from the nozzle orifice by a piece of Wire gauze 9 held in place by a retainer 10.

The mixing chamber 11 is provided with an opening 11 to receive the nozzle 6 and an outlet 12 opposite and in alinement with the nozzle which communicates with the passage 13 through which the gas is conducted to the burner 1. The main air inlet to the mixing chamber is through a bottom passage 14: at the side of the burner. The device shown herewith is a double structure having all parts in duplicate and arranged side by side. Consequently the passages 14: are located between the burners 1. A cap 15 is provided at the top of each burner which is removable for inspection of the interior thereof and each cap is provided with openings 16 to admit air to the chamber 11 and an air inlet 17 is also provided in the end of each chamber beneath the outlet 12, said inlets having tubular inserts projecting partially inside and partially outside of the chamber walls.

The operation of the generator and mixer is as follows: The generator tube 3 and its granular filling substance 8 is first heated by suitable means (not shown) after which kerosene or other hydrocarbon fuel is admitted to it under pressure through the cap 4 and by contact with the hot tube and hot granules 8 is transformed into a gas which is forced through the nozzle orifice 7 in the form of a fine jet which enters the outlet 12 and passage 13 with suificient momentum to carry it into the burner. The momentum and speed is suflicient to also carry with it by siphon action a large quantity of air from the mixing chamber 11 'which mixes with the gas forming a homogeneous, combustible gas which enters the burner 1 and emerges from the orifices 2 therein where it is ignited. and burns.

It being impossible to prevent precipitation of carbon or sediment within the generator tube, this invention provides means by which such deposit will be minutely broken up so that it will pass freely through the nozzle orifice 7. This means is embodied in the granular filling substance 8, such granules being made from pieces of steel wire or similar substance and having many sharp points and edges and haveybesides the quality of being an excellent conductor and retainer of heat, also the effect of cutting and tearing any carbon or sediment deposit which is forced past them. It will be noted that as the liquid fuel enters at the opposite end of the tube from the nozzle that any sediment or precipitation will be deposited near this end of the tube and that in order to reach the nozzle it must be forced past a large quantity of sharp angular granules which Wlll so cut and tear it to pieces 1. The combination with a gas burner of,

a mixing chamber having an inlet opening for gas and an outlet opposite and in alinement with said inlet and in communication Wltll the interior of sald burner, sald mixing chamber having air inlet openings both at its side and at its bottom so as to form a circulation toward the out-let from all parts of the chamber.

2. The combination with a gas burner ofa mixing chamber having an outlet in communication with the interior of the burner and a gas inlet nozzle opposite and in alinement withthe outlet,-an air inlet at the bottom of said chamber, aremovable cap having air passages above the gas nozzle and outlet and an air inlet in the verticalwall of the chamber below the outlet, said air inlets being so located as to form a circulation toward the outlet from all parts of the chamber.

JOHN 0; KING. 

